Vulnerability · Published Jun 24, 2026 · Assigned by Linux

CVE-2026-53006ipv6: fix possible UAF in icmpv6_rcv()

Critical 9.8

In plain English

A critical-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 66.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6_rcv() Caching saddr and daddr before pskb_pull() is problematic since skb->head can change. Remove these temporary variables: - We only access &ipv6_hdr(skb)->saddr and &ipv6_hdr(skb)->daddr when net_dbg_ratelimited() is called in the slow path. - Avoid potential future misuse after pskb_pull() call.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:10kernel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-debug6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-debug5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-debug-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-debug-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-debug-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-debug-devel-matched6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-debug-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-debug-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-debug-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-devel-matched6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-64k-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-abi-stablelists6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-abi-stablelists4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-abi-stablelists5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-core4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-cross-headers6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-cross-headers4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-cross-headers5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-debug6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-debug4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-debug5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-debug-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-debug-core4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-debug-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-debug-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-debug-devel4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-debug-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-debug-devel-matched6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-debug-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-debug-modules4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-debug-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-debug-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-debug-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-debug-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-debug-uki-virt6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-devel4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-devel-matched6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-devel-matched5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-doc6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-doc4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-doc5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-headers6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-headers4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-headers5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-modules4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-modules-extra4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-modules-extra-matched6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:10kernel-rt6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-debug6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-debug-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-debug-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-debug-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-debug-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-debug-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-64k-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-core4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-debug6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-debug4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-debug5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-debug-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-debug-core4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-debug-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-debug-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-debug-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-debug-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-debug-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-devel4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-modules4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-rt-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-rt-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.148.1.rt7.489.el8_10ALSA-2026:47010
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-tools6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-tools4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-tools5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-tools-libs6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-tools-libs4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-tools-libs5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-tools-libs-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-uki-virt6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-uki-virt5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-uki-virt-addons6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-zfcpdump6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-zfcpdump4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-zfcpdump5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-zfcpdump-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-zfcpdump-devel6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-zfcpdump-devel-matched6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-zfcpdump-modules6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-zfcpdump-modules-core6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10kernel-zfcpdump-modules-extra6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10libperf6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9libperf5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10perf6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8perf4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9perf5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10python3-perf6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:8python3-perf4.18.0-553.148.1.el8_10ALSA-2026:47011
AlmaLinux:9python3-perf5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10rtla6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9rtla5.14.0-687.30.1.el9_8ALSA-2026:45192
AlmaLinux:10rv6.12.0-211.40.1.el10_2ALSA-2026:47017
AlmaLinux:9rv5.14.0-687.30.1.el9_8ALSA-2026:45192
Debian:12linux6.1.176-1DEBIAN-CVE-2026-53006
Debian:13linux6.12.94-1DEBIAN-CVE-2026-53006
Debian:14linux7.0.10-1DEBIAN-CVE-2026-53006
Rocky Linux:10kernel0:6.12.0-211.40.1.el10_2RLSA-2026:47017
Rocky Linux:8kernel0:4.18.0-553.148.1.el8_10RLSA-2026:47011
Rocky Linux:9kernel0:5.14.0-687.30.1.el9_8RLSA-2026:45192
Rocky Linux:9kernel0:5.14.0-687.30.1.el9_8.cloud.1.0RXSA-2026:45192
Rocky Linux:8kernel-rt0:4.18.0-553.148.1.rt7.489.el8_10RLSA-2026:47010
Ubuntu:22.04:LTSlinux5.15.0-186.196UBUNTU-CVE-2026-53006
Ubuntu:24.04:LTSlinux6.8.0-136.136UBUNTU-CVE-2026-53006
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-53006
Ubuntu:26.04:LTSlinux7.0.0-28.28UBUNTU-CVE-2026-53006
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-53006
Ubuntu:22.04:LTSlinux-aws5.15.0-1112.119UBUNTU-CVE-2026-53006
Ubuntu:24.04:LTSlinux-aws6.8.0-1061.64UBUNTU-CVE-2026-53006
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-53006

Affected products (as reported)

VendorProductVersions
Linux Linux 4b3418fba0fe819197e3359d5ddbef84ba2c59de – before 7bff2c8fe5c35ae58bf73104f53db3676e6e5d944b3418fba0fe819197e3359d5ddbef84ba2c59de – before aff0f28f5be803de2452ce702631c021fcd9ce8a4b3418fba0fe819197e3359d5ddbef84ba2c59de – before 38bdbc897c0d83a3e2b925a51b69420f1feba29a4b3418fba0fe819197e3359d5ddbef84ba2c59de – before 0069813e6ca9309eca78022bcb3aeb1e9ef90a124b3418fba0fe819197e3359d5ddbef84ba2c59de – before 1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e74b3418fba0fe819197e3359d5ddbef84ba2c59de – before 7c66b368c6ff453f99cb39d84af93e908e51eef24b3418fba0fe819197e3359d5ddbef84ba2c59de – before 085e31a811ef234ef8c3e219c4636dfebfe7e10f4b3418fba0fe819197e3359d5ddbef84ba2c59de – before f996edd7615e686ada141b7f3395025729ff8ccb
Linux Linux 4.4

Weakness: CWE-825 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References